Synthesis and Conformational Study of Liquid Crystal Materials: Synthesis, Conformational Theoretical and Physical Study of Liquid Crystal compounds Containing 1,3,4-Oxadiazole Unit - Softcover

Naser, Juman A.; Himdan, Takialdin A.; Al-Dujaili, Ammar H.

Softcover

ISBN 10: 3659682632 ISBN 13: 9783659682636

Verlag: LAP LAMBERT Academic Publishing, 2015

Inhaltsangabe

A new two series of liquid crystal compounds containing 1,3,4-oxadiazole were synthesized and characterized by melting points, elemental analysis FTIR and 1HNMR spectroscopy. The liquid crystal properties of the synthesized compounds were verified by using hot-stage polarizing optical microscopy and differential scanning calorimeter. All of the compounds in both two series show mesomorphic properties. All members of those two series exhibit smectic A, smectic C and/ or nematic phases. Continually, to improve the physical study, Silver nanoparticles were prepared by reduction method and identified by mostly analysis XRD, SEM and AFM. From all of these techniques the particle size of nano seemed less than (50) nm. A theoretical investigating of core geometry by doing the conformational search over its affective torsion angles with PM3 and RM1 methods in order to include the effect of quantum mechanical factors that effect on the core geometry. Dielectric properties and other physical properties such as electrical conductivity (AC) and relaxation time or activation energy have been studied for two systems pure liquid crystals and their doped with silver nano particles.

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Über die Autorin bzw. den Autor

Juman Naser, Ph.D. and M.Sc. of Physical Chemistry from University of Baghdad, Iraq. B.Sc. of Chemistry from University of Basrah, Iraq. She is currently Assistant Professor of Physical Chemistry at Baghdad University, Baghdad, Iraq.

Details zur Ausgabe

• Verlag: LAP LAMBERT Academic Publishing
• Erscheinungsdatum: 2015
• Sprache: Englisch
• ISBN 10: 3659682632
• ISBN 13: 9783659682636
• Einband: Taschenbuch
• Anzahl der Seiten: 120
• Kontakt zum Hersteller: Nicht verfügbar
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